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Printing are insoluble coloring
matter mostly mineral origin have been used for the coloration of metal, stone,
wood and textile material.

Basic Principle of Pigment
Printing:

Pre-treatments.

Printing.

Dyeing (90-100ºC).

Curing (Cotton 140-160ºC; 3-5min and polyester
160-220ºC; 30-60sec).

Successful pigment printing
systems are based on three equally important components such as:

Pigment dispersion.

Binder and cross-linking agents.

Thickeners and auxiliary agent giving the required
rheology.

Pigment dispersion: Most of the
pigments used in textile printing are synthetic organic materials except for
carbon black, TiO2 and white pigments, copper and aluminum alloy.
When choosing synthetic pigments the principle brilliance and the coloring
power of the pigments should be3 taken into consideration. Organic pigments
must used:

Azo pigments (Yellow, Orange, and Red).

Halogenated copper (Blues, greens).

Binder system: The binder is a
film forming substance made up of long-chain polymers which when applied to the
textile material together with the pigments, produces a three dimensional
linked network. The network is formed by curing, which usually consists of dry
heat and a pH value of around 5, bringing about self cross-linking or reaction
with suitable cross-linking agent. Elasticity and improved adhesion of the film
to the fabric is achieved cross-linking.